The use of the 412 for such a flight followed on from the prior procedure of postioning a worn out Bristow 212 from Warri to Escravos for night standby.
That expected a Warri based crew who rarely if ever flew into Port Harcourt, the Chevron field, and the Texaco field to make a Night IMC flight using strange landing areas into Port Harcourt without benefit of weather reporting and almost certainly no landing aids.
When it was my turn in the barrel....I did so knowing there was no way I would even consider making the flight until daylight and even then with the possibility of not doing so if the weather was unsatisfactory. Very few of the pilots differed from that view.
The company management had definitely put some heads on the chopping block while keeping a very great distance from the risk themselves.